He is director of the E. J. Brill series «Études sur le judaïsme médiéval», and has published numerous studies and monographs in the field of Jewish culture in the Islamic context in several languages, notably his Deux traités de mystique juive (Paris, 1987), Moïse Ibn ‘Ezra, philosophe et poète andalou du XIIe siècle (Leiden, 1997), Le Commentaire kairouanais sur le Livre de la Création (Louvain, 2002), Joseph Ibn Waqâr, The Principles of the Kabbalah (Los Angeles, 2004), Judah Ibn Malka, La Consolation de l’expatrié spirituel (Paris, 2007), Juda al-Harizi, Kitâb al-Durar, The Book of Pearls (Jerusalem, 2009), and Exile in the Maghreb: Jews under Islam (Paris, 2012; New York 2015). His latest book, Muhammad Ibn Zikri (17th c.), On the Eminence of Israelites and Arabs (Madrid, CSIC, 2015) is an apologetical work in defense of the Neo-Muslims of Jewish origin in Morocco.
Before joining the ABC in 1992, she taught Religious Studies at Sydney University and in universities in England and Canada. Rachael has won three World Gold Medals from the New York Festivals International Radio Competition. She has produced documentaries for ABC TV’s Compass: The Dead Sea Scrolls, Buddhism East and West, and Paws for Thought (the spirituality of animals).